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Finding the Fourth Proportional to 270,604.40, 405,898.22 and 128,551.93

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Solution

The fourth proportional to 270,604.40, 405,898.22 and 128,551.93 is: 192,823.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,604.40 : 405,898.22 = 128,551.93 : x
  2. Step 2: Convert to fraction form
    270,604.40/405,898.22 = 128,551.93/x
  3. Step 3: Cross multiply
    270,604.40x = 405,898.22 × 128,551.93
  4. Step 4: Simplify right side
    270,604.40x = 52,178,998,871.20
  5. Step 5: Solve for x
    x = 52,178,998,871.20/270,604.40
  6. Step 6: Final answer
    x = 192,823.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.